The windows throughout your home are a gateway to the outdoors, a way to allow light in when you take in the view of your garden, yard or other surroundings. The last thing you want to see is a sweaty window plastered in a film of condensation.

Not only are windows covered in condensation unattractive, they also can be evidence of a larger air-quality deficit in your home. Fortunately, there’s numerous things you can attempt to resolve the problem.

What Produces Sweating in Windows

Condensation on the interior of windows is produced by the moist warm air inside your home hitting the cold surface of your windows. It’s especially prevalent during the winter when it’s much chillier outside than it is within your home.

Inside Moisture vs. In Between Panes

When talking about condensation, it’s crucial to recognize the distinction between moisture on the inside of your windows in comparison to moisture in between the windowpanes. One is an indoor air quality issue and the other is a window issue.

  • Moisture on the inside of a window is produced from the warm humid air throughout your home condensing against the glass.
  • Any moisture you find between windowpanes is produced when the window seal stops working and moisture gets in between the two panes of glass, and at that point the window needs to be repaired or replaced.
  • Condensation inside the windows isn’t a window issue and can instead be fixed by fine-tuning the humidity across your home. Different things generate humidity throughout a home, like showers, cooking, laundry or even breathing.

Why Indoor Sweating on Windows Could Mean a Problem

Though you might presume condensation on the inside of your windows is a cosmetic problem, it could also be a sign your home has excess humidity. If this is in fact the case, water might also be collecting on window frames, cold walls or other surfaces. Even a slim film of water can cause wood surfaces to mildew or rot over time, increasing the growth of mildew or mold.

How to Decrease Humidity in Your Home

Fortunately there are various options for extracting moisture from the air inside your home.

If you have a humidifier operating in your home – whether it be a small unit or a whole-house humidifier – lower it further so the humidity inside your home comes down.

If you don’t have a humidifier going and your home’s humidity level is higher than you prefer, look into getting a dehumidifier. While humidifiers introduces moisture into your home so the air doesn’t get too dry, a dehumidifier pulls excess moisture out of the air.

Compact, portable dehumidifiers can eliminate the water from an entire room. However, these units require clearing water trays and most often service a fairly small area. A whole-house dehumidifier will extract moisture throughout your entire home.

Whole-house dehumidifier systems are managed by a humidistat, which allows you to specify a humidity level the same like you would choose a temperature with your thermostat. The unit will run automatically when the humidity level overtakes the set level. These systems work with your home’s HVAC system, so you will receive the best results if you contact experienced professionals for whole-house dehumidifier installation .

Additional Ways to Lower Condensation on Windows

  • Exhaust fans. Installing exhaust fans near humidity hotspots like the bathroom, laundry room or above the stove can help by extracting the warm, humid air from these spaces out of your home before it can elevate the humidity level across your home.
  • Ceiling fans. Turning on ceiling fans can also keep air circulating throughout the home so humid air doesn’t get stuck in one area.
  • Opening your window treatments. Throwing open the blinds or drapes can lower condensation by preventing the warm air from being trapped against the windowpane.

By reducing humidity across your home and circulating air throughout your home, you can make the most of clear, moisture-free windows even during the winter.